Answer:
1. rate = 30, base = 40, percentage = 12
2. rate = 6, base = 24, percentage = 25
3. rate = 16, base = 64, percentage = 25
4. rate = 4, base = 50, percentage = 20
5. rate = 75, base = 80, percentage = 60
Step-by-step explanation:
the picture in the attached figure
we know that
if ABC is an isosceles triangle
then
AB=BC
angle A=angle C=45 degrees
and
triangle ABD and triangle BDC also are isosceles triangles
AD=BD=x
DC=BD=x
the hypotenuse AC is equal to

To find the length AB applying the Pythagorean Theorem

remember that AB=BC


therefore
the answer is
the length of one leg of the large right triangle in terms of x is equal to 
Point C, since pi=around 3.14
Hope that helps :)
Answer:
x=0, x= (9+i square root35)/2, x= (9-i square root 35)/2
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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